Games like Chousoku Shoujo: Hypersonic Speed Girl - Over the Speedz

If you finished Chousoku Shoujo: Hypersonic Speed Girl - Over the Speedz, the closest matches are Touhou Eiyashou: Imperishable Night, Extreme Bankikki, Chousoku Shoujo: Hypersonic Speed Girl, Touhou Multi Scroll Shooting and Mogu-mogu Rumia. All 8 share its indie genre and are ranked by how closely their themes and modes overlap.